Codex/OpenAI CLI Example

Use the official @openai/codex npm package to call OpenAI/Codex-like models in OpenSandbox.

Start OpenSandbox server [local]

Pre-pull the code-interpreter image (includes Node.js):

docker pull sandbox-registry.cn-zhangjiakou.cr.aliyuncs.com/opensandbox/code-interpreter:v1.1.0

# use docker hub
# docker pull opensandbox/code-interpreter:v1.1.0

Start the local OpenSandbox server, logs will be visible in the terminal:

uv pip install opensandbox-server
opensandbox-server init-config ~/.sandbox.toml --example docker
opensandbox-server

Create and Access the Codex Sandbox

# Install OpenSandbox package
uv pip install opensandbox

# Run the example (requires SANDBOX_DOMAIN / SANDBOX_API_KEY / OPENAI_API_KEY)
uv run python examples/codex-cli/main.py

The script installs the Codex CLI (npm install -g @openai/codex@latest) at runtime (Node.js is already in the code-interpreter image), then executes a simple request codex exec "Compute 1+1 and return JSON with keys result and reasoning." --skip-git-repo-check. Auth is passed via OPENAI_API_KEY; you can override endpoint/model with OPENAI_BASE_URL / OPENAI_MODEL.

Environment Variables

Variable	Default	Description
SANDBOX_DOMAIN	localhost:8080	Sandbox service address
SANDBOX_API_KEY	(optional for local)	API key if your server requires authentication
SANDBOX_IMAGE	sandbox-registry.cn-zhangjiakou.cr.aliyuncs.com/opensandbox/code-interpreter:v1.1.0	Sandbox image to use
OPENAI_API_KEY	(required)	Your OpenAI API key
OPENAI_BASE_URL	https://api.openai.com/v1	OpenAI API endpoint
OPENAI_MODEL	gpt-4o-mini	Model to use

References

• @openai/codex - Official OpenAI Codex CLI
• Source code on GitHub